Toggle navigation
MeasureThat.net
Create a benchmark
Tools
Feedback
FAQ
Register
Log In
lodash uniq vs set with spread
(version: 0)
Comparing performance of:
Set vs Array
Created:
3 years ago
by:
Guest
Jump to the latest result
HTML Preparation code:
<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>
Tests:
Set
var l = [... new Set([1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7])]; return l;
Array
var l = [1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7]; return _.uniq(l);
Rendered benchmark preparation results:
Suite status:
<idle, ready to run>
Run tests (2)
Previous results
Fork
Test case name
Result
Set
Array
Fastest:
N/A
Slowest:
N/A
Latest run results:
No previous run results
This benchmark does not have any results yet. Be the first one
to run it!
Autogenerated LLM Summary
(model
llama3.2:3b
, generated one year ago):
Let's dive into explaining the provided JSON benchmark. **Benchmark Overview** The benchmark compares two approaches to remove duplicates from an array: using the `Set` data structure and using the `uniq()` function from the Lodash library. **Options Compared** Two options are compared: 1. **Using a Set**: This approach creates a new `Set` object from the input array, which automatically removes duplicate elements. The resulting set is then converted back to an array. 2. **Using Lodash's uniq() function**: This approach uses the `uniq()` function from the Lodash library to remove duplicates from the input array. **Pros and Cons of Each Approach** **Using a Set:** Pros: * Efficient, as sets are designed for fast membership testing and set operations * Automatic removal of duplicates Cons: * Requires manual conversion back to an array after removing duplicates * Might not be suitable for large datasets due to memory constraints **Using Lodash's uniq() function:** Pros: * Convenient, as it provides a single function for removing duplicates * No manual conversion required Cons: * Slower than using a Set, as it iterates over the input array and performs additional operations * Might be less efficient for very large datasets **Other Considerations** Both approaches have their trade-offs. Using a Set is more memory-efficient but requires manual conversion back to an array. The Lodash `uniq()` function provides convenience but might be slower due to its additional overhead. **Library Used (Lodash)** The benchmark uses the Lodash library, which is a popular utility library for JavaScript that provides various functions for tasks such as array manipulation, string processing, and more. **Special JS Feature/Syntax** None of the test cases use special JavaScript features or syntax. Both approaches are standard JavaScript and rely on well-established libraries (Lodash) if necessary. **Alternative Approaches** Other alternatives for removing duplicates from an array in JavaScript include: 1. Using a `for` loop with array iteration 2. Utilizing `Array.prototype.filter()` and `Array.prototype.includes()` 3. Employing a more advanced approach using `reduce()` or other higher-order functions These alternative approaches might offer varying trade-offs in terms of performance, memory usage, and complexity compared to the Set-based and Lodash `uniq()` function implementations.
Related benchmarks:
lodash uniq vs native uniq
Spread Set vs Lodash uniq
Lodash uniqBy vs Set vs Set spread
uniqBy performance lodash vs native
lodash uniq vs spread new Set() medium size
Comments
Confirm delete:
Do you really want to delete benchmark?